I am bashing my head in trying to figure out this vibration. It is at higher speeds (from 45 to 70+) but off and on.. Almost like the road surface makes it better or worse.

This was worse when I had my old tires and wheels. I bought brand new BFG Ats and eagle rims.. Lifted it with bilstein 5100s and a AAL.. It was good for a while. Then I got my new frame.. It was still fine for a while. Then all of a sudden..

Thought it was balance but Ive had them rebalanced 2 different places several times.. Checked for out of round.. Nothing... Had the front end checked for wear.. Nothing.. Bought new rack bushings... Nothing.. Someone said it could be internal in the rack? I have new inner and outer tie rods..

My other issue is that the slip shaft in the steering column has some play as they all do..

Does it do it when its in 4wd? If it goes away in 4wd, then its a bearing in your front diff. Theres a couple threads on it on the 1st gen and 2nd gen forums. Next time you go for a drive, put it in 4wd and see if you can reproduce the vibrations.

Does it do it when its in 4wd? If it goes away in 4wd, then its a bearing in your front diff. Theres a couple threads on it on the 1st gen and 2nd gen forums. Next time you go for a drive, put it in 4wd and see if you can reproduce the vibrations.

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not sure if it does it in 4wd... I have only used the 4wd maybe up to 40mph max.. I avoid highways because of all this..